Diff URL for custom bz2 file

[alterEgo123]

Hello,
I'm trying to setup Overpass API for North America and Europe regions. I merged the .bz2 files using osmium and i'm using that file for OVERPASS_PLANET_URL.
Should I set for OVERPASS_DIFF_URL=. https://planet.openstreetmap.org/replication/minute/?

[arnesetzer]

You could do that, but this would produce some overhead since you apply updates to non existing nodes/ways/relations.
You could clip europe and north america from the diff file but it is no recommended since you would lose any way/relation which has no node in the change file.

Another option would be to get both diff files (e.g. https://download.geofabrik.de/europe-updates/ and https://download.geofabrik.de/north-america-updates/) and merge them with osmium (osmium cat file1.osc.gz file2.osc.gz -o combindedChange.osc.gz) or osmconvert (osmconvert *.osc.gz --merge-versions --out-osc | gzip > combindedChange.osc.gz)